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The Avalanche has been a successful GT bike model since the beginning. Regularly referred to as the Zaskar's little brother, this bike features a high-end construction and exceptional components so it can shred the trails like its name suggests.

The Avalanche has been a successful GT bike model since the beginning. Regularly referred to as the Zaskar's little brother, this bike features a high-end construction and exceptional components so it can shred the trails like its name suggests.

Excellently Efficient, Stiff and Reliable

To maintain this efficiency is the excellent performing combination of All Terra hubs and the All Terra Double Wall rims. This wheelset is supremely stiff and is very reliable on any terrain. To keep the speed up and to gain your trail confidence when the terrain in challenging is the WTB Ranger Comp tyres. These wheels and tyres combined with the exceptional Shimano M315 brakes make any trail session and fun and memorable experience.

Built, Tuned and Tested

Rest assured that each bike is fully built, tested and tuned by Wiggle's team of qualified bike mechanics to ensure your bike arrives in perfect condition. Find out which size fits you by clicking the size chart tab.

Note: Manufacturer may reserve the right to change the specification of that listed or shown on this page.

About the GT brand

GT Bikes, based in Southern California, has been in the business of making great bikes since 1972 when Gary Turner launched one of the first performance BMX race bikes.
Developing world class bikes in conjunction with the world’s best BMX rider such as Greg Hill, Eddie Fiola, Jamie Bestwick, Clive Gosling and Dave Mirra, GT grew into one of the biggest brands.
With a BMX heritage and based in California the MTB scene was the perfect addition in the late 80’s . GT used the same model of developing performance bikes with the best riders, pioneering new suspension technology and the use of carbon fibre in MTB frames. Winning numerous World Championships in downhill and cross country racing with legendary riders such Nicholas Vouilloz, Steve Peat and more recently Atherton Racing, with Dan Gee and Rachel Atherton.
Hans “No Way” Ray has been one of the figurehead of GT’s longstanding team rider program, setting the record for longest sponsorship deal of 26 years and counting.
It hasn’t always been about dirt, in the mid 90’s GT took there carbon technology and build track bikes for the USA Olympic team, the bike was later banned for being too fast. GT latest crop of Enduroad Grade models play perfect testament to the brands heritage across, dirt, road and track.

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XX Small

X Small

Small

Medium

Large

Extra Large

Seat Tube - Center to Top

mm

343mm

355mm

380mm

430mm

485mm

540mm

Top Tube (Virtual)

mm

553mm

569mm

585mm

610mm

667mm

683mm

Standover Height

mm

703mm

708mm

724mm

756mm

797mm

836mm

Head Tube Angle

Degrees

69°

69.5°

69.5°

69.5°

69.5°

69.5°

Seat Tube Angle

Degrees

72.7°

72.7°

72.7°

72.7°

72.7°

72.7°

Chainstay Length

mm

435mm

435mm

435mm

435mm

435mm

435mm

Head Tube

mm

90mm

90mm

90mm

92mm

108mm

124mm

Bottom Bracket Height

mm

312mm

312mm

312mm

312mm

312mm

312mm

Fork Rake

mm

42mm

42mm

42mm

42mm

42mm

42mm

Wheelbase

mm

1055mm

1066mm

1082mm

1107mm

1135mm

1165mm

Bottom Bracket Drop

mm

45mm

45mm

45mm

45mm

45mm

45mm

Front Centre

mm

624mm

635mm

651mm

675mm

704mm

734mm

Stack

mm

575mm

577mm

577mm

582mm

589mm

604mm

Reach

mm

374mm

389mm

405mm

429mm

454mm

479mm

Height

cm

148 - 158cm

156 - 167cm

164 - 174cm

172 - 182cm

180 - 190cm

188 - 196cm

ft

4′ 10″ - 5′ 2″

5′ 1″ - 5′ 6″

5′ 5″ - 5′ 9″

5′ 8″ - 6′

5′ 11″ - 6′ 3″

6′ 2″ - 6′ 5″

Inside Leg

cm

64 - 70cm

68 - 74cm

72 - 78cm

76 - 82cm

80 - 86cm

84 - 89cm

inches

25″ - 28″

27″ - 29″

28″ - 31″

30″ - 32″

31″ - 34″

33″ - 35″

Delivery Information

We are sorry, but due to your delivery destination United Kingdom we can not dispatch this item.

International Delivery

Wiggle ships to over 100 countries. To see what delivery options are available for other destinations you can update your delivery destination via the International Options feature at the top right of the website.

Returns Information

We're so confident that you'll love your new bike from Wiggle, that we'll let you test ride it for a month! If you're not happy with it, just email us to bike@wiggle.co.uk and we'll pick it up from you for a full refund. Just make sure you keep the box so it can be re-used to send it back. Read more about our 30-day test ride.

We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.

Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.